2273577778 has 8 divisors (see below), whose sum is σ = 3423045420. Its totient is φ = 1132562640.

The previous prime is 2273577763. The next prime is 2273577793. The reversal of 2273577778 is 8777753722.

It is an interprime number because it is at equal distance from previous prime (2273577763) and next prime (2273577793).

It can be written as a sum of positive squares in 2 ways, for example, as 1827819009 + 445758769 = 42753^2 + 21113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2112453 + ... + 2113528.

Almost surely, 2^2273577778 is an apocalyptic number.

2273577778 is a deficient number, since it is larger than the sum of its proper divisors (1149467642).

2273577778 is a wasteful number, since it uses less digits than its factorization.

2273577778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226252.

The product of its digits is 8067360, while the sum is 55.

The square root of 2273577778 is about 47682.0488024581. The cubic root of 2273577778 is about 1314.9319318813.

The spelling of 2273577778 in words is "two billion, two hundred seventy-three million, five hundred seventy-seven thousand, seven hundred seventy-eight".